276 to 300 of 303 Front-End Engineer (Client-Side Engineer) Jobs in the UK

Solirius Reply is seeking an experienced Automation Test Engineer/SDET to join our London-focused client projects. You will design, develop, and deliver test solutions while mentoring teammates and upholding best practices. Most work can be done remotely, with travel to London ...

Augur Initiative Ltd in London is seeking a frontend engineer to build complex, high-performance web apps for visualising data in real-time environments. You will own core frontend components and interfaces, extending them to support customer-specific workflows across multiple sectors. The role requires rapid ...

develop is seeking a Frontend Engineer to build a brand new product using React and TypeScript. This remote-first role includes one on-site day per month in London and offers a competitive salary up to £85,000. You will collaborate with backend engineers ...

Solirius Reply, part of the Reply Group, is seeking an experienced Automation Test Engineer/SDET to work with clients in the public and private sectors. You will design, develop and deliver test solutions, mentoring team members and promoting testing best practices. Remote work is available ...

Synthesia Limited, a London-based AI video platform, is hiring a Senior Frontend Engineer for the Website team. You will own the component library, content model and rendering stack behind synthesia.io, shaping direction and making key technical decisions. You’ll work end-to-end ...

Powster, a Creative Studio based in London and Los Angeles, is seeking a Senior Creative Software Engineer with a strong UX/UI focus to lead immersive WebGL experiences for high-profile movie and music clients. You will own the frontend SDLC from creative ideation through ...

Unitary is a remote-first AI startup building Virtual Agents for midmarket customers. We seek a senior React engineer to own frontend interfaces, reimagine our frontend into a scalable platform, and blend product thinking with engineering excellence. You will collaborate with product, design and platform teams ...

data and AI actionable: chat experiences, engineering assistants, dashboards, and internal digital tools, all supported by AI platforms. As a product-focused engineer, you will be embedded in or allocated to a business-aligned product team (Product Development, Manufacturing, or #J-18808-Ljbffr ...

Flagstone is seeking a Staff Engineer specializing in front-end and mobile to set technical strategy and drive high-quality React and React Native systems across multiple squads. You will mentor engineers, shape architecture, and lead design-system evolution while partnering with ...

to contribute across multiple tech areas and deliver trusted, scalable products. You will work on AEM-based components, front-end interfaces, and production code in a fast, secure enterprise setting. You will lead design reviews, mentor engineers, and collaborate with cross-functional ...

Augur Communications Ltd is seeking a frontend engineer to build complex, performant web applications for visualising and navigating data. You will develop core frontend components and interfaces and extend them to support customer-specific workflows across various sectors. This high-impact role suits someone ...

NextGenEnergyJobs is seeking a senior frontend engineer to lead the flexibility team's frontend capability in the UK. You will own a range of customer journeys for onboarding, control, and analysis of low carbon tech, and build internal interfaces for stakeholders and experiments. You will collaborate ...

CoreWeave is seeking a Staff Frontend Engineer to own the Physical AI platform’s frontend end-to-end, shaping architecture, design system evolution, and performance. You’ll collaborate with Design, Product and Backend Engineering to deliver intuitive, data-heavy UIs for engineers ...

Caribou is hiring a frontend-focused full-stack engineer in the UK to build data-dense, legible interfaces for intercompany tax data. You will own features end to end, from frontend through the API, collaborating with our CTO, lead engineer ...

Motorway is seeking a Staff Frontend Engineer to lead technically across our frontend engineering organisation. You will work across cross-functional squads, shipping features end-to-end and owning API contracts, documentation, and a technical roadmap. You will drive consistency across ...

ActAI seeks a Web Frontend Engineer to build core web experiences across Chat, Notes, Calendar, Docs and Sheets. You’ll own features from architecture to production, delivering fast, accessible interfaces with real-time interactions and streaming AI. Collaborate with product, design and backend engineers to ship ...

Pleo in the United Kingdom is seeking a Staff Engineer for Design Systems to lead the engineering direction of Telescope and ensure a consistent UI across web and mobile. You will partner with Design and Engineering to drive adoption and quality, while mentoring teammates and contributing ...

Tech is seeking a Frontend Engineer to design and build UI for our AI agent platform in financial services. You will translate complex workflows into intuitive interfaces, contribute to design system, and ship production-ready React code. You'll work closely with engineers and the founding ...

JPMorgan Chase & Co. is seeking a Web Engineer for Personal Investing to develop customer‐facing web applications. You will work in a cross‐functional team with Engineering and Product, delivering features end‐to‐end using a React‐based design system. You will ...

People is seeking a Frontend Quality Assurance Specialist for a high-growth prediction markets trading firm. You will conduct manual testing, build front-end automation with Playwright, and extend the QA framework to cover instrument listings and settlement workflows. You will work with Product and Engineering ...

Commify, a CPaaS leader with 25 years of experience, seeks a talented Frontend Engineer to design, build, and maintain user-facing features across web, desktop, and mobile platforms. You will write clean, well-tested code, collaborate with Product Managers, QA, and cross-functional teams, and advocate ...

frontend experience, shaping look, feel and performance for traders, with influence over product decisions and future directions. You may be a founding engineer or early product engineer who has shipped complex trading features. You’ll work with engineering, design and commercial teams ...

United States Digital Space LLC is seeking a Front End Design Engineer to own the user interface, typography, layout, and the design system that underpins critical regulatory workflows. You’ll work with real, dense data and build an interface that reviewers ...

Decently Ltd in Manchester is hiring a Product Engineer with a strong frontend focus to help build Melo’s clinician-facing platform. You’ll contribute across the stack, with your primary focus on high‐quality React interfaces and product features used daily by clinicians. This … level role reports to the Lead Engineer, collaborating with Product, Design, and clinicians to translate real‐world workflows into usable software. #J-18808-Ljbffr ...

Goldman Sachs seeks a Lead Frontend Engineer (Vice President) in London to drive UI strategy and delivery for Transaction Banking digital experiences. You will lead a team, set technical direction, and collaborate with product owners to deliver scalable, high-availability frontend solutions. You will mentor engineers ...